Patent · US Active

Switch with movable frog point

US8746630B2 · kind B2 · utility

0Cited by
5References
14Claims
0Family size

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Key dates

Filing dateJan 12, 2009
Grant dateJun 10, 2014
Priority date
Expiry dateJun 28, 2029

Classification

  • Technology area (CPC E)Fixed Constructions
  • CPC primaryE01B7/14
  • WIPO fieldCivil engineering
  • WIPO sectorOther fields

Abstract

In a switch including a switch frog (1) with a movable frog point (2) and wing rails (5, 6), wherein the wing rails (5, 6) in the region of the frog point (2) each have a rail profile which is lower than that of a standard rail, the wing rails (5, 6) are designed as Vignol rails whose region configured with a lower rail profile is produced by metal-forming departing from the Vignol rail profile.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.